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Finding the Fourth Proportional to 356,153.55, 491,491.84 and 195,008.57

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Solution

The fourth proportional to 356,153.55, 491,491.84 and 195,008.57 is: 269,111.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,153.55 : 491,491.84 = 195,008.57 : x
  2. Step 2: Convert to fraction form
    356,153.55/491,491.84 = 195,008.57/x
  3. Step 3: Cross multiply
    356,153.55x = 491,491.84 × 195,008.57
  4. Step 4: Simplify right side
    356,153.55x = 95,845,119,910.03
  5. Step 5: Solve for x
    x = 95,845,119,910.03/356,153.55
  6. Step 6: Final answer
    x = 269,111.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.